AD7191
Info: : PRODUCTION
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AD7191

Pin-Programmable, Ultralow Noise, 24-Bit, Sigma-Delta ADC for Bridge Sensors

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $5.02
Features
  • Pin-programmable output rate
  • Output data rate: 10 Hz, 50 Hz, 60 Hz, 120 Hz
  • Pin-programmable PGA
  • Gain: 1, 8, 64, 128
  • Pin-programmable power-down and reset
  • RMS noise: 15 nV @ 10 Hz (gain = 128)
  • Up to 21.5 noise free bits (gain = 1)
  • Please see data sheet for additional features
Additional Details
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The AD7191 is a low noise, complete analog front end for high precision measurement applications. It contains a low noise, 24-bit sigma-delta (Σ-Δ) ADC. The on-chip low noise gain stage means that signals of small amplitude can be interfaced directly to the ADC. It contains two differential analog inputs. The part also includes a temperature sensor that can be used for temperature compensation.

For ease-of-use, all the features of the AD7191 are controlled by dedicated pins. The on-chip PGA has a gain of 1, 8, 64, or 128, supporting a full-scale differential input of ±5 V, ±625 mV, ±78 mV, or ±39 mV. The output data rate can be programmed to 10 Hz, 50 Hz, 60 Hz, or 120 Hz. Simultaneous 50 Hz and 60 Hz rejection is obtained when the output data rate is set to 10 Hz or 50 Hz; 60 Hz only rejection is obtained when the output data rate is set to 60 Hz. The AD7191 can be operated with the internal clock, or an external clock can be used.

The part operates with a power supply of 3 V to 5.25 V. It consumes a current of 4.35 mA. It is available in a 24-lead TSSOP package.

Applications

  • Weigh scales
  • Strain gauge transducers
  • Pressure measurement
  • Medical and scientific instrumentation
Part Models 2
1ku List Price Starting From $5.02

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD7191BRUZ
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AD7191BRUZ-REEL
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Part Models

Product Lifecycle

PCN

Jan 20, 2012

- 11_0218

Halogen Free Material Change for Certain TSSOP Products at Carsem

Filter by Model

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Reset Filters

Part Models

Product Lifecycle

PCN

Jan 20, 2012

- 11_0218

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Halogen Free Material Change for Certain TSSOP Products at Carsem

Software and Part Ecosystem

Software and Part Ecosystem

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Evaluation Kit

Evaluation Kits 1

EVAL-AD7191

AD7191 Evaluation Board

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EVAL-AD7191

AD7191 Evaluation Board

AD7191 Evaluation Board

Product Detail

The EVAL-AD7191EBZ is a fully featured evaluation Board for the AD7191. The evaluation board can be operated in standalone mode ( either battery-powered or with external power supply) or connected to a PC via a standard USB interface. When operated with a PC, software is provided enabling the user to perform detailed analysis of the ADC's performance.


Please note: This Evaluation software does not run on Windows 8 or Windows 10 (USB driver is non-compliant with OS >Windows 7).

Tools & Simulations

Tools & Simulations 2

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